Wrapping machine



Feb. 11, 1958 R. E. TAGGART r-:rAL 2,822,652

WRAPPING MACHINE '7 Sheets-Sheet 1 Filed Dec. 13. 1954 R. E. TAGGARTETAL 2,822,652

Feb. 11, 195s WRAPPING MACHINE '7 Sheets-Sheet 2 Filed Dec. 13. 1954Feb. 11, 1958 R. E. TAGGART ET Al. 2,822,652

WRAPPING MACHINE Filed DSC. 13, 1954 7 Sheets-Sheet 5 Feb. 1'1, 1958 R.E. TAGGART ETAI. 2,822,652 i WRAPPING MACHINE '7 Sheets-Shea?I 4 FiledDec. 15, 1954 Feb. 11,' 1958 R. E. TAGGART r-:TAL 2,822,652

WRAPPING MACHINE I Filed Dec'. 13, 1954 'I sheets-sheet 5 Feb. ll, 1958R. E. TAGGART ET AL WRAPPING MACHINE '7 Shawna-Sheetl 6 Filed Dec. 13,1954 Feb. 11, 1958 Filed Dec. 13, 1954 R. E. TAGGART ETAL 2,822,652

WRAPPING MACHINE 7 lSheets-Sheet '7 /fiw United Statesv Patent()WRAPPING MACHINE Robert E. Taggart and James C. Travis, Anderson, Ind.,

assignors to Lynch Corporation, Anderson, lud., a corporation of IndianaApplication December 13, 1954, Serial No. 474,898

12 Claims. (Cl. 53-22S) This invention relates to a wrapping machineparticularly adapted for wrapping packages of either round or squareshape, readily interchangeable wrapping heads being provided for theround or square packages as,

desired.

One object of the invention is toprovide arelatively simple arrangementfor quickly adapting the machine for round or square packages by meansof removable rotary wrapping heads supported entirely from one side andincluding openable pockets of different character in the two wrappingheads, but operable in a similar manner by the same mechanism of themachine and particularly certain cams thereof so that no change in thecams is necessary when changing from round to square wrapping operationsor vice versa.

Another object is to provide a wrapping head of barrel-` like characteropen at one end and supported for rotation at its other end only so thathold-down and package push-out instrumentalities can operate inside thebarrel and can be supported at its open end so as to project thereintowith the operating mechanism therefor entirely outside of the barrel. pp 1 Still another object is to provide a wrapping head having pocketswherein a wrapper is wrapped around a stack of articles such as cookiesor sandwiches, the pockets being openable to receive the articles andwrapperyclos'- able to carry the same during the wrapping operation andopenable again for discharge ofthe wrapped articles therefrom.

A further object is to provide wrapping instrumentalities for thevarious flaps of the wrapper to wrap them around the package, and aplurality of heaters for heating the flaps and thereby adhering them tothe main body of the package.

Still a further object is to provide a cam arrangement for opening andclosing the pockets of the wrapping head-.and for moving the heatersmentioned in the above object into and out of contact with the packagesduring the wrapping thereof, the cam arrangement being oscillatable soas to open and close the pockets and to move the heaters into and out ofcontact dun'ng a stationary part of the intermittent cycle of rotationofthe wrappinghead,

the head being rotated by a Geneva movement andV the Y oscillations ofthe cam being timedin relation thereto so as to be active only when thehead is inactivebecause of the dwell of the Geneva movement. f V l Anadditional object is to provide heaters that are adaptable for eitherround or square packages and which can be quickly adjusted for oneV orthe other merely by rotatably reversing them so that either a curvedface or a at face thereof contacts the packages, depending on whetherround or square packages, respectively, are being wrapped. Y

With these and other -objects in view, our invention consists in theconstruction,V arrangement and combination of the various parts of ourwrapping machine, whereby the objects above contemplated are attained,as hereinafter more fully set forth, pointedout in .Qurclaimstaudillust..

2,822,652 Pitented'Feb.` 11, 1958 ICC trated in detail on theaccompanying drawings, wherein:

Fig. 1 is a plan view ofpart of a wrapping machine including themechanism which constitutes our invention and shows the relationship ofvarious parts thereof.

Fig. 2 is an enlarged side elevation of Fig. 1, portions of Fig. 1 beingshown in section on the liuel-l'of Fig. 2.

Fig. 3 is a front elevation of Fig. 2, looking in the direction of thearrow 3 adjacent the left side thereof.`

Fig. 4 is a vertical sectional view of the line 4-4 of Fig. 3 showingone of the cam actions of our machine.

Fig. 5 is a vertical sectional view on the line 5-5 of Fig. 3 showinganother cam action thereof.

Fig. 6 is a vertical sectional view on the'line 6 6 of Fig. 3. Y

Fig. 7 is a vertical sectional view on the line7-7 of Fig. 6.

Fig. 8 is a vertical sectional view on the line 8-8 of Fig. 7.

Fig. 9 is aV right side-elevation of a take-out conveyor and a portionof a take-away conveyor together' with adjacent portions of our wrappingmachine.

Fig. 10 is a partial side elevation and partial sectional view of thelower portion of the wrapping head for square articles taken from thereverse side in relation to Fig. 6 to show how theparts of the pocketare adapted for square articles instead of round articles, as are thepockets of Fig. 8. Y,

p Fig. 11 is a perspective view Vof a stack of round articles showingthe association of a wrapper therewith as. the articles are elevatedfrom the position shown in Fig.. 8 into a pocket of the wrapping head.

. Fig. 12 is a similar perspective view showing the .way the wrapper isfolded to make the rst Aeudflaps as the articles are introduced fullyinto the pocket of the wrapping head.

Fig. 13 is a diagrammatic view showing the circum-r ferential ap of thewrapper being folded by a folder` blade.

Fig. 14 is a similar diagrammatic view showing the secondcircumferential ap being folded.

Fig. 15 is a further diagrammatic view showing the;

second end flap being folded as the partially wrapped article is pushedinto the take-out conveyor'ofV Fig. 9.

Fig. 16, on the sheet of drawings withFig. 2, showsthe third end apbeing folded byv one of final or fourth end fold being formed vby afolder element of Fig. 9. s

-On the accompanying drawings. we p have used the reference numeral 22to indicate a vertical frame and 28 a tablesupported at the top of the.vertical frame.

Fig. 2 shows the right. side off the machine when' and a Geneva housingcover 36 is securedthereto to form an enclosure for a Geneva movement. Ahead shaft 38 isA journaled in bearings 40 and 42, carried by thehousing 34 and its cover 36, and supported on the righthand end thereofis a round head indicated generally asRH.

This is a handling head for round articles, such as disclike cookies orsandwiches, whereaswe also provide a square head. SH (see Fig. 10)interchangeable with the round head and provided for wrapping squarearticles such as square cookies, crackers, 'orsandwiches ,'l'he Geneva.movement above referred Yto .consists l of the folder elements 'fagseaesef a Geneva disc 44 secured to the shaft 38. and a` Geneva.

rotator 46 carrying a roller 47 to enter the slots of the Geneva disc.The rotator 46 is secured to a Geneva rotator shaft '48; The shaftt48l'is1 also journaled-inthelanism-above/referredtoandi-a'-el'rain-fiii's driven 'hy r-a sprocket 80on the Geneva rotator shaft 48. Y 1Referring-toLiFig.-9; a-take-outi'conveyor chain gifts shown carrying take-out elements 86 of angle shape."Tl-iechain-84 extendsfaroundfsprocketsfSS fandlllll for conveying thewrapped packages from the roundA head RH tothetakefaway conveyor 32.Thel sprocketfSS'is secured-toa shaft 88a.

sprocket 2104: (see--Fig..-3-)- securedi to-thefheadi shaftl 38.

The chain.- drives-.a-'sprocket- (not'lsh'own) on theV shaftv'Ihef-chaiu 84 rand-its' 'element-'s 86i-fd'eliver the wrapped packages-to a plate-92-(Fig. y9)"-s'panning the distance between the sprocket 90and the conveyor 32, and/sweep ngersi-96-'aref provided -to--move thepackages along --this plate.---Thef'sweep tngersiar'e driven `by apackage. hold-- down'belt supportedl-l94=on air-ame 98-which is pivotedon a shaft 95 for the sweep-iingersso-that the frame canV beraise'dinthe-eventtrouble is experienced iu the proper wrappingofany-package.The-frame 98-is-shown in the lowered; or lope'rati-veposit-ion` with ashaft 95e thereof resting on a post 95". A shaft 32a of the conveyorA-32 and-thelshaft S15-arciy driven from the-shaft 76 by suitablemeansnot illustrated.

Referring now to the` details of the round head-RHl is. rigidlymounted-in and-carriedf-iby' the ring 108.v The The;Atakefoutconveyonichain l 84 is driven' in an intermittent'manner--bymeans ofv af Alchain-*1202'fol'rar energized type.

of the bell crank 152 carries a roller 158 cooperating with a barrel cam160, the cam groove of which is indicated at 162. The cam 160 is securedto the cam shaft 68, and thereby rotatable in unison therewith and intimed relation to the wrapping machine.

Referring to Figs. 3, 6, 7 and A8, three heaters H1, H2 and H3 areprovided which may be of the electrically Three brackets 164-are-secured to the Geneva housing 34, and project toward-the right sideof the machine. The outer end ofeach bracket car-ries a bearing 167 inwhich a rock shaft 166 is journaled. A heater carrying arm 168 issecured to each rock shaft for supporting the' heaters H1, H2`and H3? Arock4 arm 170 tothe cam- 142` and accordinglyoscillates therewith underother end 120 of the pocket is provided in the form of amovable.member,\-carried @by-a .slide--rod- 122 which is urged. to theVpositionshownf-byr a'` spring :1261that permits slight movement of thefend' .120Jaway fromthefend 116 when the 'cookies enter'between them.

. Returning toFig'. 8, a' stationary pocket side 128`is supportedY on a.crossbar 110,' and--a-'rnovable-side 13G-is supported vby an. arm132mou-nted1-on air-eck shaft V134,-one for each of the eight pockets.;Thus; the 'elements-1116, 120, 128 and 130 form an openable pocket,- theopenpo'sition being shown for the pockets' at stations (l), (7) and (8),the pockets Yof the head being designated (l) to' (8) in Figs. 6 and I3.Each ofthe rock'shafts134has a rock arm 1'36 mounted thereon andterminating in a'iroller 138.

The rollers 138 are engaged with -a cam- 142 having aA lobe v 144 bymeans of springs 140.

The cam 142 as shown-in Fig.- l?. is o-scillat'abl'e fon aq controlofthe-cam11f60 on'thecamfshaf't'=68.l Details of` operation Will--beexplained hereinafter. Each heater Ahasaliatface 176 and' oppositethereto acurved facev 178 and these faces are preferably serrated asshown in Fig. 7. One ofthe-'heating elements foret-he heaters is` shownat HE inl-iig; --bengof the metal'sheathedtype received in a-boreof theheater.

The intake conveyor-l0 isrprovided with pockets --1-80 toreceive-articles' to-be wrappedlsuchasicookies or sandwches-182-(seeAFigiv 8).`v These'are'the roundty-pe. A ram-'184;having`a'head-186fisadapted to pass upwardly' through -thebo'ttom of 'the-pocket i180 tovraise* the articles 18W-throughv ani'opening188of the-table- 28 'againsta sheet of wrapping paper 190, and to moveI the articles and thepaper'into-thepocketfof the'he'ad 'RH atstation` (fl). Thelrami1l8'4shown in Figs. ZfantiV 8- isreciprocated vertically intimedvrelation-tothe"operating cycles ofthe machinebutthe'rnechanism'toaccomplish suchl reciprocation isY not :described'f in f det-ail theL*detailsv thereof will be f '-'found 'i`11A the prior patents of 'vSandberg,` Nos. 2,567,405, 2,603,048 and 2,642,707 of ourassi'gnce'.

- Wrapping paper maybe supplied from a reelA and may be cut-*by apapercutting 'mechanism' asL disclosed in Sandberg patents-into-individual:wrappers 190 shown in Figs. 5,' 6,'- 7 and 8ffu`nder the control'oftheelectric eye mechanism shown in said patents(Y The mechanism justreferred; toisnot -`part 'of' our'-`present invention and therefore willnot be described in greater detail;

Referring toFigf-l l; the coaction-'of the "wrapper 190 withftle stackofarticles"1182lr is illustrated' in theq relative positions 3they:assume Vjust after thex articles' have 'passed through the openin'gdlSSof'lthe table 28. When the article and wrapper are completelyin thepocket'o the had `A`RH-atlst ati'on( 1) the first end vtiaps vwill `havebeen foldedbyfthepocket' ends 1116 and* 120l as'illustrated inFig-'1.12" andf'this-ap i-s numbered 1.` The next operation isillu`strated inY Fig. 213f7whererr theA trst circumferentialAhasoneiend. (Figsf. 2", "Siand 5) pivotedfto -the'slide 200 and-itsother endfpivotel tothe upper end of a level-206. The lever-2206z-is-go'scillatble Yon a-studZtlS carried by abracket-armlzlfeittendingfron the `bracket 156. The lower end of theleverfztlG-carriesa roller4 2-12y (Fig. l5)- coactingl'withabarrelfca'mT2143 thei'cam groove being shownat-Zl I Y -Atterthe' staclt/ ofy--ar"ti cles'A -182 andthe '-wrapper 190 are completelyini-thepcke't'fat-station') the movable bell crank` 152.. The bellf crank1.52is'oscil1atable onla of the pocket side at station (1) andsimultaneously heaters-.s'o that'they arearaisedi froml the-positionshown and-thehead-RH- isi-then 'ready-torotate.-

As the head RH rotates, the second circumferential ap of the packageindicated at 1B in Fig. 14 is folded around the articles by a curvedplate 218 which is stationarily mounted. Thereupon the partially wrappedpackage at station (2), having both circumferential flaps and the firstend folds (l) completed, is ready to move to stations (3), (4) and (5)where heat is applied as the heaters are moved into contact with the ap1B at these stations.

The package is then ready to move past an idle station (6) to station(7) where it is to be ejected into postion for engagement by thetake-out elements 86 of the take-out conveyor chain 84. This isaccomplished by a push-out rod having a push-out head 222 thereon, therod being L-shaped as shown in Fig. 1 and secured to a rack 224 which isslidable in a rack and sector housing 226. Within the housing 226 a gearsector 227 meshes with the rack 224 and is mounted on a rock shaft 228journaled in the housing 226.

Within the rack and sector housing 226 is a gear sector 227 in mesh withthe rack 224 and mounted on a rock shaft 228 journaled in the housing.Exteriorly of the housing an arm 230 extends from the rock shaft and alink 232 depends therefrom and terminates in a closed fork 234straddling the cam shaft 68. The fork carries a roller 236 coacting witha barrel cam 238 on the cam shaft, the cam having a groove 240 thereinfor the roller. Accordingly the cam vertically reciprocates the link 232for oscillating the gear sector 227 and thereby reciprocating the rack226 and the push-out head 222. This head is shown in the pushed outposition in Fig. 13, after having extended through the pocket at station(7 of the head RH, and the retracted position of the head 222 is shownby dotted lines, within the ring 108 so as not to interfere with theintermittent rotation of the head RH. The cam 238 is set, of course, soas to properly time the reciprocations of the push-out head 222 to occurat a time the head RH is stationary.

Referring to Figs. l, 3, 7 and 8, a paper hold-down shoe 242 isillustrated. This shoe is loosely pivoted on the lower end of a rod 244,telescopically mounted in a tube 250, and normally biased downwardlyrelative thereto by a spring 246 in the tube. The tube 250 is verticallyslidable in a bracket 248 extending upwardly from the table 28 andhaving a foot 249 secured thereto .(as shown in Fig. 1) and into thehead RH. A lateral pin 252 is carried by the upper end of the tube 250,and the upper end of a link is pivoted thereon, its lower end beingpivoted to an arm 256. The arm 256 is mounted on a rock shaft 258journaled in the bracket 248.

Asecond arm 260 is secured to the rock shaft and a link 262 has one endthereof pivoted to the upper end of this arm. The other end of the linkis pivoted to a boss 264 (see Fig. 2) secured to the rack 224 so as tobe movable therewith. Accordingly when the push-out head 222 is farthestto the left in Fig. 8 the hold-down shoe 242 is farthest down in itstravel and ready to be engaged by the paper 190 as the paper is raisedby the articles 182 engaging therewith. Thereafter as the articles andwrapper are moved into the pocket at station (l) of the head RH the tube250 is retracted but not quite as fast as the articles enter the pocketof the head RH, and therefore the spring 246 is under predeterminedtension to hold the shoel 242 against the wrapper 190 to prevent it fromslipping in any lateral direction relative to the articles beingwrapped. Finally when the shoe 242 is in its raised position it is clearof the pocket so as to permit the intermittent rotation of the head RHwithout interference.

Referring to Figs. l and 9 folder elements 266 are illustrated whichform the second end fold on the package as illustrated in Fig. 15. Thissecond end fold is labeled 2.

After the second end fold is formed, one of the takeout elements 86engages the partially wrapped package to carry it to vthe plate 92.yFurther folder elementsl268- and 270 are shown, these being the usualplow or twisted I blade type, and these are operable for forming thethird and fourth end flaps 3 and 4 as in Figs. 16 and 17. Thereafter thepackage passes between heater shoes 272 (Fig. 9) to seal the end flaps1, 2, 3 and 4 and the kickout fingers 96 move the completed packageacross the plate 92 onto the take-away conveyor 32.

In Fig. l0, SH indicates a head for wrapping square articles, the pocketbeing illustrated at station (l). In place of the stationary pocketsides 128 and 130, pocket sides 128a and 130a of somewhat differentshape are used for the square articles which are indicated at 182a. Adisc 106a and a ring 108a are provided to form the framework of the headsimilar to the head RH, but the two are connected by struts 110aadjacent the periphery of the ring 108a rather than adjacent its innerdiameter as are the struts 110 in the round head (Fig. 8).

In addition to the rock shaft 13411, a second one, 134b is used for thepocket side 128b. The two are operatively connected together forsimultaneous movement by means of a first gear sector 174 and a secondgear sector 176 m-eshed together as illustrated. The rock shaft 134a(the same as the rock shaft 134) carries an arm 136a and a roller 138aas shown in dotted lines for coaction with the lobe 144 of the cam 142.Other comparable parts, such as the springs 140a, are also used. Also',additional springs 178 back up the pocket sides 128a and 130a, tendingto close them.

When it is desirable to change from wrapping round articles to wrappingsquare articles, it is merely neces- Y sary to remove the round head RHby removal of the screws 112 shown in Fig. 7 and substitute the squarehead SH. The heaters H1, H2 and H3 are turned over so that their flatsides 176 rather than their curved sides 178 are toward the'head.Thereafter, when the machine is put into operation the cam 142 willcoact with the rollers 138a in the same manner that they coacted withthe rollers 138 and the square articles will be properly wrapped in themachine.

From the foregoing specification it will be obvious that we haveprovided a wrapping machine wherein round or square articles can bewrapped with a minimum of changes required to adapt the machine foreither type ofi article. Contrasted with the Sandberg Patent No.2,642,-v 707, only one of the end folds is formed in the head ratherthan all four. formed in`substantially the same manner as in theSandberg patent and our arrangement permits more effective heating ofthe circumferential flaps by the heaters H1, H2 and H3 prior tofinishing the wrapping of the ends of the package. The second, third andfourth end flaps are wrapped and sealed after the package leaves thehead. This arrangement permits the construction of a head that isconsiderably less expensive to manufacture than the one shown in theSandberg patent and permits the folding of the second, third and fourthend flaps and the heating thereof in the take-out conveyor shown in Fig.7 where the frame 98 is readily movable to the raised position shown inFig. 3 to clear out any miswrapped packages.

Some changes may be made in the construction and arrangement of theparts of our wrapping machine without departing from the real spirit andpurpose of our invention, and it is our intention to cover by our claimsany modified forms of structure or use of mechanical equivalents whichmay reasonably be included within theirl tially spaced pockets toreceive articles and wrappers Y therefor, each of said pockets having apair of ends and a pair of sides, at least one of said sides beingopenable.

to receivean article and a wrapper therefor, means for Bothcircumferential flaps are movngnhefartele 'andwr'p'pei into the pocketat 'a' rst station et said. head, said pocket ends folding the'rsrt' endaps of 'thewra'ppen cam means for" opening said" openable pocket sideasthe article and kwrapper enter the station during rotationoftheheadgaplurality of heater shoes at further 'stationsof said he'ad, a 'secondcam means 'l for engaging said heatersh'es with1tle"-packagewh`ile` theVhead is 'stationary'anddisengaging thei'n"fromthe ing lsaid headthrotigh its 'openiend to push the partly wrapped article out of the;head'by radiallyV outward f movement relative thereto at a''stillf'urther station,"said" camfineans'al'so opening the'pocketat'said last station,

'20 the wrapper las thepackage isso pushedytake-'ont conveyor means'form'ovin'g the article"thereafter; third' and end `apfolder blades for'folding thesecond 'end aps of fourthend ap folder' blades for foldingthe third andm fourth end flaps of 'the 'wrapper as thepackage isfurther advanced bysaid take-out conveyor means, and heatersA beyondsaid third and fourth end iiapfolderv blades for' heating' the endfolds'of the wrapper, said first and second-cam means, said folderbladefsaidmeans for inter mittently rotating said head,'"s'aidpn'sh-o'ut'means and.

said take-out' conveyor means Hbeing -cyclically' operated inaccordancewith the cycles of' operation of said wrap-v ping machine.

2. In a wrapping machine," a Wrapping rhead 'of barrellike charactersupported for rotation' at one'end and having its center opening to theoppositee'nd 'of the head, said head having ycircumferentiallyspacedpockets to receive articles an'd wrappers therefor, 'each 'ofsaidpoeketshaving a pair of ends and a pair of sides," oneV of 'saids'idesbeing openable to receive an article and a wrapper therefor, means'formoving the article and Wrapper'into the pocket at a first station ofsaid head, said pocket ends folding the rst end flap'spf the wrapper,cam 'means for opening' said'openable pocket side as the article andwrapper enter the pocket, a'folder' bla'de movable 'to'fold a firstcircumferential'ap of the Wrapper, means 'for intermittently ro-V tatingsaid heada pocket at a time, a stationary blade engageable with a secondcircumferential flap 'of the wrapper to fold it aroundthe articleVoverlappini'z, the first circumferential flapas the pocket is'adva'ncedto a second station during rotation of the'head, push-outrnean'sentering said head through its open end and movable radially outwardthereof to push the partly wrapped article ont of the head at a furtherstation thereof, end ilap folder blades'for folding the second 'endtlaps of the wrapper as the package is so pushed, take-out conveyormeans 'for'movingthe article' thereafter, third and fourth end ap"folder 4bladesV for folding the third and fourth end flaps of'thewrapper as the package is further advanced by'said takeout conveyormeans, said cam means, said folder blade, said means for intermittentlyrotating said head; said push-'out means and said take-out conveyormeans being cyclically operated -in accordance with the cycles ofloperation of said Wrappingmachine. y

3. A wrapping machine comprising a Wrapping head of barrel-likecharacter removably supported for'rotation at one end and having itscenter opening to the opposite end therefor, meansfor moving thearticleYandv wrapper into the pocketlat a rst station -of said 'headfwrapperholddown-riieauls.I entering said head thronghits'openend land movable-through'-a pocket thereof at said first station -for holding the`vi/rapperagainst Ythe article, said pocket ends for openingfsaidvpocket sidesrasfthearticle and wrapper Y enter Vthepocket, Vafolder Vblade Amovable to fold a firsty circumferential' flap' of 4thevwrapper,` means lfor intert mittently rotating saidhead'a pocket at a'time; a second blade curved to" engageasecond circumferential apof thewrapper tofolditl around the article overlapping ltherstcircumferentialflap as the kpocket'is advancedtoA a second stationduring rotation of the head, push-out means entering said headthroughitsV open'e'iid to'push the partly wrapped article out of theheadat a still further station of said head, and folder blades'forfolding `the remaining end flaps of the 'Wrapper after the packageleaves said first f means, saidfolder` blade andsaid means forintermittently l rotating saidrhead'being cyclicallyr'operated.

4. ln a Wrapping machine, a wrapping head'supported for rotation andhaving circumferentially spacedV pockets' e to receive articlesandiwrapp'er's therefor,V each of said pockets having a pair of endsanda pair of sides, at least one of said sides being openabley toreceive an articlef meansfor moving the article andwrapper into thepocket at a rst 'station of said head,said1pocket ends folding the firstend flaps of the wrapper, cam'means rotatable about the 'axis ofrotation'ofl said wrapping head for open ing said openable sides'as thearticle and wrapper enter the pocket vand while said head is stationary,a folder blade l movable tofo'ld a' first circumferential flap lof thewrapper also while* said head is stationary', means Afor vintermittentlyrotating said head, a stationary blade engageable with a secondcircumferential'fla'p of the wrapper to fold it around-the `articleoverlapping the rst circumferentialv ap during rotation of saidhead-,pushout'means -to push the partly yWrapper article out'of the headat a still further' station thereof,-end flap folder blades lfor foldingthe second endaps'ofthe Wrapper as thepackagelis'so pushed',

means-forthereafter folding the third 'and fourthend' aps of thewrapperfsaid Icatnni'iearis,'saidfolder blade;A l said means forintermittently vrotating said head and said;L

push-out-means being cyclically operated.'

of the wrapper, cam meansfor opening said openable pocket side asthearticle and wrapper enter the pocket, a

folder blade movable to fold 'a first circumferential flap of thewrapper, means for intermittently rotating' said head a pocket at atime, a stationary blade'engageable with a second circumferentiall flap'of the wrapper to f'oid it around the article overlapping thel firstcircumferential ap yas the pocket is advanced to a 'second station'during rotation vof said head, pushout means to push the partly wrappedarticle out of said head at a still further'station' thereof, folder`bladesfonfolding"the'second end flaps of the wrapper as the package isso pushed, take-out'conveyor means for movingxthe article thereafter,third and fourthfolder bladesfor foldin'g'the' third and fourth end apsyof the wrapper as the'package is further advanced by said take-ontconveyor means, said cam means, said wrapperhold-down means, 'said.folder blade, said:

means for intermittently rotating'said head, said push-out means andsaid tak'ef'out `convi'eyor means being cyclically operated'inaccordancewith the' cycles of operation of said wrapping machine.;

6, A wrapping" machine comprising a wrapping head'. having one endsupported forrotation and its opposite end open, said head havingcircun'iferentiallyY spaced pockets to receive articles` and'wrappersftherefon-eachmof said` pockets having a pair of ends and apairv of sides,

said sides being-openable to receive an article and ai wrapper therefor,means for moving the article and wrap-` v per into the pocket at a firststation of said head while for thereafter rotating said head, astationarylblade engageable with a second circumferential flap ofthewrapper to fold it around the article overlapping the firstcircumferential ap as said head is rotated, a plurality of heater shoesat further stations of said head, a second cam means for engaging saidheater shoes with the package. while the head is stationary anddisengaging them from the. package while the head is rotating, push-outmeans entering said head through its open end to push the partly 'iwrapped article out of the head at a still further station thereof,saidcam means also opening the pocket atsaid still further station, folderblades forfolding the second end aps ofthe Wrapper as the package is sopushed,

third and fourth end flap folder means for the partially Y wrappedpackage, andrheaters for heating the end folds of the wrapper, saidfirst and second cam means, said folder blade, said means for rotatingsaid head, said pushout means being cyclically operated in accordancewith the cycles of operation of said wrapping machine, said wrapperhold-down means being operated simultaneously with said push-out means.

7. In a wrapping machine of the character disclosed, a wrapping head,having one end supported for rotation andV having itsopposite.end.open, circumferentiallyl spaced pockets-inL said head to receivearticles andwr'a'p! pers, each of said pockets having a pair of ends anda pair, of sides,a't least one of said sides being openable to receivearr-article and a .wrapper therefor, rneansf'forV moving the article andwrapper into the pocket at a first station of said head, wrapperhold-down means extending within said head through its open end andmovable through the pocket at said first station for holding the wrapperagainst the article as said pocket ends fold the first end flaps of thewrapper, cam means for opening said openable side as the article andwrapper enter the pocket, folder blades to fold first and secondcircumferential aps of the wrapper, a plurality of heater shoes atfurther stations of said head, a second cam means for engaging saidheater shoes with the package while the head is stationary anddisengaging them from the package while the head is rotating, push-outmeans entering said head through its open end to push the partly wrappedarticle out of the head at a still further station thereof, blades forfolding the second end aps of the wrapper as the package is so pushed,means for thereafter folding third and fourth end aps of the wrapper andheaters beyond said last means for heating the end folds of the wrapper,said wrapper hold-down means, said first and second cam means, saidfolder blade, said means for intermittently rotating said head and saidpush-out means being cyclically operated.

8. In a wrapping machine of the character disclosed, a wrapping headhaving circumferentially spaced pockets `to receive articles andwrappers therefor, each of said pockets having a pair of ends and a pairof sides, at least one of said sides being openable to receive anarticle and a wrapper therefor, means for moving the article and wrapperinto the pocket at a first station of said head, wrapper hold-down meanslocated within said head and movable through a pocket thereof at saidfirst station for holding the wrapper against the article, said pocketends folding the first end flaps of the wrapper, cam means for openingsaid openable side as the article and wrapper enter the pocket, a folderblade movable to fold a .tirstcircumferential,flapf ofthe wrapper, meansforfintermittently rotating. said head a pocket at. atiine, a stationarybladeengageable with a second circumfe ential ap of the wrapper to foldit around the article overlapping the rst c ircumferemtial flap as thepocket is advanced to a second station during rotation of theV head, aplurality of-heatershoes at further stations of said head,f saidshoes-having curved `and at. faces .and beingreversible to present,either face tothe articles i saidgpockets, a SecOndHcam, meansfornengaging said, heater shoes withhthepackagelwhile the head isstationf. aryfand disengagingjhemfrom. the package while the, headjsrotating, means to. push the partly wrapped Ya ticle outiofj'the head-at=a still furtherstation thereof, folder blades `for foldingthe secondend'flaps of the wra peras the packageis soi/pushed, take-out conveyormeans for-moving the articlethereafter,,third and fourth folderbladesfor foldingthethird andfourth end'aps of the wrapperjastthe package isfurther advanced by said takeout conveyor fmeans, saidv wrapperhold-down means, l., ,Y said first and lsecond means, said folder blade,said y; means for intermittently,rotating said head, said push f outmeansy andgsaid` take-outjconveyor means being cyclicallyoperatedin'accordancewith the cycles of opera-ff, ,y tion ofrsaidwrappingmachine. j

9i, In a'wrappingfmalchineof; the character disclosed,a wrapping headcomprisinga disc supported for rotation, ,n a .ring connectedtherewith-in spaced relation thereto, circumferentially Aspacedfpockets betweensaid discand said, ring toy receivefarticles and wrappers therefor,`each f, oflsaidpockets havingrapair of ends,` and a pair of sides, f atvleast-one of said sidesfhaving a terminalfend to retains-,- f v anfarticlein the pocket andbeing openable to receive the. article; iand,afwrapperztherefon means *for movingthe articlefandwrapperqintoihepocket at a first station of said head whilesaidpocket sidev isopen,s,aid pocketgends Y, folding A the first endflaps v-of the,vvrapper`, camlfm'erans, for opening said openable side as the articleand wrapperienten thzegpocket and for thereafter closingfit to 'retain`the articleqmeans ptogfoldgarrst circumferential flaprofzthel. fwrapper, means for intermittently rotating said head one pocket at atime, means to fold a second circumferential ap of the wrapper aroundthe article overlapping the first circumferential ap as the pocket isadvanced to a second station during rotation of said head, push-outmeans entering said head through said ring and movable radially througha pocket of said head to push the partly wrapped article out of the headat a still further station thereof, and folder blades for thereafterfolding the second, third and fourth end flaps of the wrapper.

10. A wrapping machine comprising a wrapping head comprising a discsupported for rotation, a ring spaced therefrom, cross membersconnecting said ring to said disc, circumferentially spaced pocketsbetween said disc and ring to receive articles, each of said pocketsbeing openable to receive an article and a wrapper therefor and havingan inturned flange to hold the article and wrapper in the pocket, meansfor moving the article and wrapper into the pocket at a first station ofsaid head, cam means foropening the pocket as the article and wrapperenter the pocket, a folder blade movable to fold a first circumferentialflap of the wrapper, means for intermittently rotating said head apocket at a time, a stationary blade engaged with the secondcircumferential flap of the wrapper to fold it around the articleoverlapping the first circumferential ap as the pocket is advanced to asecond station during rotation of said head, push-out means en-` teringsaid head through Aits open end to push the partly wrapped article outof the head at a further station thereof, said cam also opening thepocket at said further sta-v tion, folder blades for folding the secondend aps of the wrapper as the package is so pushed, take-out conveyorfor moving the articles thereafter, third and fourth folderl blades forfolding the third and fourth endaps of the wrapper as it is moved bysaid take-out conveyor, said menaces-'1:

tently `rotating said head; saiclfflgiushwmL meansrandfs'aid takleputconvlej'or being operated'fcyclicallyYin'r accordance with the cycles ofoperation of thewrapping machine;

l1.l A wrapping machinecomprsing a wrappinghead-- comprising a discsupported for rotation,- a ring-fspaced therefrom, crossmembersconnecting:saidgringitosaidr disc, circumferentially Ispacedpocket'sbetweensaid ldiscf and ring to receive `articles'and"v.\rapperstherefor; `eachJ of said pockets havinga pairAof ends and apair-ofsidesf= which' are openabletofeceive an article and awrappertherefor and having an inturned angertothold the article v andwrapper inthe pocket, means for moving the article and wrapper into thepocket at a first station of said'head,y

said ends folding the lirst end -ap=of thewrapper, cam

termittently rotating said -head a pocket at altime, a

stationary blade engaged with the second circumferential` ap of thewrapper to fold it around the article overlapping VVthe firstcircumferential ap as the pocket is ad-' p-15 means for opening saidopenable sides -as the articleand wrapper enter the pocket, a folderblade movable to fold t a' rst circumferential ap of the wrapper, meansforin-A vanced to asecond station during rotation of-the head,

push-out means .entering said head through said ring' andv having meanslocated in the space between said disc andsaid. ring, saidfmeansbeingmovable through said pockets to push',the-partlywrappedvarticleoutof-the head aty a. still-l furtherllstation,A said cammeansoper'iingthe open able-sides ofthe pocket as .said pushout meansy pushesan f article outof said head,f'folder blades 4for folding the seeond endi a'ps of the wrapper- Yas the i package gis so pushed, means for movingthe @articles thereafter, means forfold-- ing fthe thirdt'and Vfourth:end'aps of the Wrapperas tit? k is Imoved byisaidflastmeans, said-cammeans, said folder blades, said means `for `intermittently rotating saidhead,

saidpush-out` means land said last means beingjoperatedirialaccordancetwithlfthe/cyclesfoffoperation ofthe wrappingA @12. A'wrapping machine comprising 'a l wrapping head comprising adisc-supported forrotation, a ringispa cedf40- therefrom, #cross fmembersL connectinglisad f ring@ to, :saidfJ -f di'sycircumferentiallyspaced pockets ybetweengsaicidisc aiidiiringjto receivearticles andwrappers therefor,-eachfr ofsaid'pocke'ts havinga pair of' endsfiandapair of sides* 'f and-beir`1g=` openable` to receive an article'fand Yawrapperl therefor, atleast one-.of said sides -having an inturne'dflange'to -hold 'the articleand wrapperyin the pocket,

meansfor' moving vthe article and Wrapper into Vthepocket at'agiirststationio'f said head,saidends -foldingthe first fenda'pw theWrapper,wvrapper hold-downmeans lol cated inthe space between saiddiscand said ring and movable-through a pocket'of said head at said firststation push-the 'partly wrapped article out of the head at a laststation thereof,"fold er blades for folding the second endapsfoftliewrapper as the package is so pushed, said cam means vopeningthe pocket at said last station, take-out conveyor-means for'moving Athearticles thereafter, and' thirdv and -fourth -end `ap folder' bladesLfor folding the thirdand fourth end ap's' of thewrapper as it ismovedby-'said take-out conveyor means.

References Cited in the ile of this patent c UNITED STATES PATENTS1,084,593 Escobales Ian.. 13,1914 1,964,411;` Beutel June 26, 1934 "7'15965321" Smith4 July, 1934'- 2,037,631n Hultin Apr. 14, 1936'.2,400,682A Bronander- May 2l,` 1946I 2,590,127 Sandberg Mar. 25, 1952-Malhiot July 15, 1952*

